Home / 257,054.70-354,739.86-140,778.36

Finding the Fourth Proportional to 257,054.70, 354,739.86 and 140,778.36

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Solution

The fourth proportional to 257,054.70, 354,739.86 and 140,778.36 is: 194,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,054.70 : 354,739.86 = 140,778.36 : x
  2. Step 2: Convert to fraction form
    257,054.70/354,739.86 = 140,778.36/x
  3. Step 3: Cross multiply
    257,054.70x = 354,739.86 × 140,778.36
  4. Step 4: Simplify right side
    257,054.70x = 49,939,695,717.43
  5. Step 5: Solve for x
    x = 49,939,695,717.43/257,054.70
  6. Step 6: Final answer
    x = 194,276.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.